A freeze-drying strawberry sugar spraying machine

Abstract

This invention discloses a freeze-dried strawberry spraying machine, relating to the field of food processing technology. It includes a mounting frame, a spraying anti-condensation unit, a defoaming unit, a processing unit, a recycling unit, and a transport unit. The mounting frame is used to mount and fix the spraying anti-condensation unit, defoaming unit, processing unit, recycling unit, and transport unit. The spraying anti-condensation unit prevents the sugar solution from solidifying at the nozzle. The defoaming unit eliminates air bubbles in the sugar solution. The processing unit increases the adhesion of the sugar solution to the surface of the freeze-dried strawberries. The recycling unit recovers unused solidified sugar solution. The transport unit transports the freeze-dried strawberries to a designated location for spraying with sugar solution. The spraying anti-condensation unit treats the nozzle to prevent solidification of the sugar solution at the nozzle from affecting the spraying effect. The defoaming unit maintains good fluidity of the sugar solution while eliminating air bubbles. The processing unit pre-treats the surface of the strawberries. The recycling unit collects and reuses the unused sugar solution solidified on the transport net.

Description

Technical Field

[0001] This invention relates to the field of food processing technology, specifically a freeze-dried strawberry spraying machine. Background Technology

[0002] Freeze-dried strawberries, a popular snack, are favored by consumers for retaining most of the strawberry's nutrients and offering a unique crisp texture. To further enrich the flavor of freeze-dried strawberries and enhance their market competitiveness, spraying sugar syrup onto the surface to create sugar-coated freeze-dried strawberries has become a common processing method. This product not only has a sweet taste but also forms an appealing sugar coating, satisfying consumers' dual needs for delicious taste and visual enjoyment. With the continuous growth of market demand, higher requirements are being placed on the performance and product quality of freeze-dried strawberry sugar-coating machines. It is necessary to solve many problems existing in the production process of current equipment to improve production efficiency and product quality.

[0003] In existing freeze-dried strawberry spraying machines, the nozzle is a key component for achieving uniform spraying of the sugar syrup. However, due to the viscosity and high sugar content of the sugar syrup, it tends to solidify at the nozzle during short shutdowns or after production. Once solidified, the syrup clogs the nozzle, preventing it from spraying properly or resulting in uneven spraying upon restarting, severely impacting the spraying effect and product quality. During syrup preparation, stirring is typically performed to ensure good flowability and spraying performance. However, stirring introduces a large amount of air into the syrup, creating bubbles. These bubbles affect the uniformity of the syrup during spraying, leading to pinholes and uneven thickness on the surface of the freeze-dried strawberries, reducing the product's appearance and taste.

[0004] Freeze-dried strawberries have a relatively smooth surface, and the adhesion of sugar syrup to their surface is limited. This makes it easy for the sugar syrup to fall off after spraying, affecting the quality and shelf life of the product. After spraying, freeze-dried strawberries need to have the sugar syrup dried and shaped in time to prevent the sugar syrup from flowing and sticking together, thus ensuring the shape and taste of the product. Summary of the Invention

[0005] The purpose of this invention is to provide a freeze-dried strawberry spraying machine to solve the problems mentioned in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: The freeze-dried strawberry spraying machine includes a mounting frame, a spraying anti-condensation unit, a defoaming unit, a processing unit, a recycling unit, and a transport unit. The mounting frame is placed on a horizontal surface. The spraying anti-condensation unit is fixedly connected to the mounting frame. The spraying anti-condensation unit is fixedly connected to the defoaming unit. The defoaming unit is electrically connected to the processing unit. The defoaming unit has the function of eliminating air bubbles in the sugar solution. The processing unit is fixedly connected to the mounting frame. The recycling unit is fixedly connected to the mounting frame. The transport unit is fixedly connected to the mounting frame. The recycling unit is fixedly connected to the transport unit.

[0007] The mounting frame is used to install and fix the spraying anti-condensation unit, defoaming unit, treatment unit, recovery unit, and transport unit. The spraying anti-condensation unit prevents the sugar solution from solidifying at the nozzles. The defoaming unit eliminates air bubbles in the sugar solution. The treatment unit increases the adhesion of the sugar solution to the surface of the freeze-dried strawberries. The recovery unit recovers unused solidified sugar solution. The transport unit transports the freeze-dried strawberries to the designated location for spraying with sugar solution. The spraying anti-condensation unit treats the nozzles to prevent the sugar solution from solidifying at the nozzles and affecting the spraying effect. The defoaming unit maintains good fluidity of the sugar solution while eliminating air bubbles. The treatment unit pre-treats the surface of the strawberries. The recovery unit collects and reuses the unused sugar solution solidified on the transport net.

[0008] Furthermore, the spraying anti-condensation unit includes a first electromagnet, a moving block, a return spring, an electric push rod, a slide, and a bent rod. The moving block is fixedly connected to the return spring, the moving block is fixedly connected to the fixed end of the electric push rod, the telescopic end of the electric push rod is fixedly connected to the slide, and the bent rod is fixedly connected to the slide. The moving block is made of a magnet.

[0009] Furthermore, the spray anti-condensation unit also includes a heating rod, a support frame, a nozzle, a flexible belt, an air box, a pull plate, and a piezoelectric ceramic plate. The first electromagnet is fixedly installed on the support frame, the return spring is fixedly connected to the support frame, the heating rod is fixedly connected to the bent rod, the support frame is fixedly installed on the mounting frame, the nozzle is fixedly installed on the support frame, one end of the flexible belt is fixedly connected to the bent rod, and the other end is fixedly connected to the pull plate. The air box is fixedly installed on the support frame, the inside of the air box is a vacuum, the air box is provided with a one-way air inlet and a one-way air outlet, the one-way air inlet of the air box is connected to an external hot air tank, the pull plate is slidably installed in the air box, the pull plate is connected to the air box by a spring, and the piezoelectric ceramic plate is fixedly installed on the support frame.

[0010] After the freeze-dried strawberries are transported to the support frame and undergo one sugar spraying process, the controller stops the spraying and simultaneously activates the electric push rod to move the slide forward. This causes the heating rod on the curved rod to move directly below the spray head. As the slide impacts the piezoelectric ceramic, generating a micro-current, the controller receives the current signal and supplies a current to the first electromagnet with a polarity opposite to that of the moving block. This attracts the moving block, stretching the return spring and causing it to move upward. This allows the heating rod to penetrate deeper into the spray head, preventing the sugar syrup adhering to the nozzle from solidifying and affecting the uniformity of subsequent spraying. Meanwhile, the freeze-dried strawberries, now sprayed with sugar, continue to... In the right transport, as the electric push rod moves the bent rod forward, the flexible belt causes the pull plate to squeeze the hot air in the left chamber of the air box out of the one-way air outlet, accelerating the solidification of the sugar liquid on the freeze-dried strawberries, making them quickly set and preventing the sugar liquid from flowing and affecting their appearance. When the controller controls the electric push rod to retract and reset, a reverse current is first passed to the first electromagnet so that the first electromagnet presents the same polarity as the moving block, pushing the moving block to squeeze the reset spring downward, so that the heating rod is separated from the nozzle. During the retraction of the electric push rod, the pull plate resets and moves to the right under the action of the spring, and hot air is re-extracted from the hot air tank for backup.

[0011] Furthermore, the defoaming unit includes a pull rope, a straight column, a telescopic spring, a ring frame, a storage box, and a turntable. One end of the pull rope is fixedly connected to the slide frame, and the other end is fixedly connected to the straight column. The straight column is fixedly installed on the turntable. One end of the telescopic spring is fixedly connected to the straight column, and the other end is fixedly connected to the ring frame. The straight column and the ring frame are slidably connected. The ring frame is fixedly installed on the storage box through a connecting rod. The storage box is conductively connected to the nozzle and is fixedly installed on the support frame.

[0012] Furthermore, the defoaming unit also includes a conveying screw, a shaped wheel, a vibrating paddle, a moving plate, an impact plate, a guide rod, and a conductive slider. The turntable is fixedly connected to the conveying screw, the conveying screw is rotatably connected to the storage box, the shaped wheel is fixedly mounted on the conveying screw, the vibrating paddle is fixedly mounted on the inner wall of the storage box, the moving plate is connected to the storage box via a spring, the moving plate is vertically fixedly connected to the impact plate, the guide rod is fixedly mounted on the outer surface of the storage box, the end of the conveying screw away from the turntable is provided with an external thread, the conductive slider is threadedly connected to the conveying screw, the conductive slider is slidably connected to the guide rod, and a heater is provided on the blades of the conveying screw.

[0013] As the carriage moves to the left, the pull rope pulls the straight column along the ring frame while simultaneously squeezing the telescopic spring. During the sliding of the straight column, the turntable and conveying screw rotate, thus agitating the sugar solution in the storage tank. This keeps the sugar solution in a flowing state, preventing solidification that could clog the nozzles or cause uneven spraying. As the conveying screw rotates, it drives the shaped wheel to rotate. When the shaped wheel rotates to contact the moving plate, it lifts the moving plate and squeezes the spring. When the shaped wheel is not in contact with the moving plate, the spring's restoring force pushes the moving plate, causing the impact plate to move downwards and impact the vibrating disc. The vibrating disc generates micro-vibrations after being periodically impacted, thus tearing and eliminating air bubbles in the sugar solution. This prevents air bubbles from affecting the uneven spraying of sugar solution by the nozzle plate, which would result in uneven sugar coating of freeze-dried strawberries, affecting their appearance and taste. During the rotation of the screw, the conductive slider moves back and forth on the guide rod.

[0014] Furthermore, the processing unit includes a fixed plate, a long plate, a buffer spring, a second electromagnet, and a needle. The fixed plate is fixedly mounted on the mounting frame, and the long plate is slidably connected to the fixed plate. One end of the buffer spring is fixedly connected to the second electromagnet, and the other end is fixedly connected to the long plate. The second electromagnet is fixedly mounted on the mounting frame, and the conductive slider is electrically connected to the second electromagnet. The needle is fixedly mounted on the long plate, and the long plate is made of magnet.

[0015] As the conductive slider moves outward along the guide rod, the number of turns of the drive coil increases, and the resistance increases, thereby reducing the current supplied to the second electromagnet. At this time, the long plate moves downward under the action of the buffer spring's own restoring force, causing the spikes to pierce some small holes on the surface of the freeze-dried strawberries during transportation, thereby increasing the adhesion of the sugar syrup and preventing the sugar syrup from flowing down the surface of the strawberries during the spraying process, which would reduce the utilization rate of the sugar syrup.

[0016] Furthermore, the recycling unit includes a vertical plate, an eccentric wheel, a rotating rod, a swing plate, and a knocking plate. The vertical plate is fixedly mounted on the mounting frame. The eccentric wheel is connected to the transport unit via a connecting rod. One end of the rotating rod is connected to the vertical plate via a torsion spring, and the other end is connected to the mounting frame via a torsion spring. The swing plate is fixedly mounted on the rotating rod, and the knocking plate is fixedly mounted on the rotating rod.

[0017] Furthermore, the transport unit includes a first motor, a second motor, a conveying roller, and a conveying net. The first motor is fixedly mounted on the mounting frame, the second motor is fixedly mounted on the mounting frame, the conveying roller is fixedly connected to the output end of the first motor, the conveying roller is rotatably connected to the mounting frame, the conveying roller is fixedly connected to the output end of the second motor, the outer surface of the conveying roller is covered with a conveying net, and the conveying roller connected to the first motor is fixedly connected to an eccentric wheel.

[0018] The controller starts the first and second motors, which in turn drive the conveyor rollers to rotate. This, in conjunction with an external negative pressure mechanism, uses negative pressure to absorb and transport the freeze-dried strawberries on the conveyor network. As the conveyor rollers rotate, they also drive the eccentric wheel to rotate. When the eccentric wheel rotates to contact the swing plate, it squeezes the swing plate, causing the rotating rod to rotate and compressing the torsion spring. When the eccentric wheel rotates to no longer contact the swing plate, the restoring force of the torsion spring causes the rotating rod and the striking plate to impact and beat the conveyor network. This breaks up the solidified sugar solution on the conveyor network and collects it into the recycling bin below. This allows subsequent workers to pour it into the storage bin for reuse, avoiding waste of sugar solution resources.

[0019] Furthermore, a drive coil is provided on the guide rod, with the current input terminal located at the end near the turntable.

[0020] In order to make the conductive slider reciprocate on the guide rod, the polarity of the second electromagnet is changed, thereby controlling the lifting and lowering of the long plate to drive the spikes to form holes on the surface of the freeze-dried strawberries, and improving the adhesion of the sugar liquid when spraying sugar.

[0021] Furthermore, a controller is provided on the mounting bracket.

[0022] To facilitate automated control of the device, save manpower, and improve work efficiency through timely response of the device itself.

[0023] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention involves a sugar spraying process performed after freeze-dried strawberries are transported to the support frame. At this point, the controller stops the spraying and simultaneously activates an electric push rod to move the slide forward. This causes the heating rod on the curved rod to move directly below the spray head. During the process of the slide impacting the piezoelectric ceramic and generating a micro-current, the controller receives the current signal and supplies a current to the first electromagnet with a polarity opposite to that of the moving block. This attracts the moving block, stretching the return spring and causing it to move upward. This allows the heating rod to penetrate deeper into the spray head, preventing the solidification of sugar syrup inside the spray head from affecting the uniformity of subsequent spraying. Simultaneously, the freeze-dried strawberries, after the sugar spraying is complete... Continuing to transport to the right, as the electric push rod moves the bent rod forward, the flexible belt causes the pull plate to squeeze the hot air in the left chamber of the air box out of the one-way air outlet, accelerating the solidification of the sugar syrup on the freeze-dried strawberries, making them quickly set and preventing the sugar syrup from flowing and affecting their appearance. When the controller controls the electric push rod to retract and reset, a reverse current is first passed to the first electromagnet so that the first electromagnet presents the same polarity as the moving block, pushing the moving block to squeeze the reset spring downward, causing the heating rod to detach from the nozzle. During the retraction of the electric push rod, the pull plate resets and moves to the right under the action of the spring, and hot air is re-extracted from the hot air tank for later use.

[0024] 2. This invention, during the leftward movement of the carriage, pulls the straight column along the ring frame under the action of the pull rope, while simultaneously squeezing the telescopic spring. The sliding of the straight column drives the turntable and conveying screw to rotate, thereby agitating the sugar solution in the storage tank. This keeps the sugar solution in a flowing state, preventing solidification that could clog the nozzles or cause uneven spraying. During the rotation of the conveying screw, the shaped wheel rotates. When the shaped wheel contacts the moving plate, it lifts the moving plate and squeezes the spring. When the shaped wheel is not in contact with the moving plate, the spring's restoring force pushes the moving plate, causing the impact plate to move downwards and impact the vibrating disc. The vibrating disc, after being periodically impacted, generates micro-vibrations, thereby tearing and eliminating air bubbles in the sugar solution. This prevents air bubbles from affecting the uneven sugar coating of the freeze-dried strawberries, which would negatively impact their appearance and taste. During the screw's rotation, the conductive slider moves back and forth on the guide rod.

[0025] 3. In this invention, as the conductive slider moves outward along the guide rod, the number of turns of the drive coil increases, and the resistance increases, thereby reducing the current supplied to the second electromagnet. At this time, the long plate moves downward under the action of the buffer spring's own restoring force, causing the spikes to pierce some small holes on the surface of the freeze-dried strawberries during transportation, thereby increasing the adhesion of the sugar syrup and preventing the sugar syrup from flowing downward along the surface of the strawberries during the spraying process, which would reduce the utilization rate of the sugar syrup.

[0026] 4. This invention controls the start of the first and second motors via a controller, thereby driving the conveyor rollers to rotate. This, in conjunction with an external negative pressure mechanism, uses negative pressure to absorb and transport the freeze-dried strawberries on the conveyor network. During the rotation of the conveyor rollers, an eccentric wheel rotates. When the eccentric wheel rotates to contact the swing plate, it squeezes the swing plate, causing the rotating rod to rotate while simultaneously compressing the torsion spring. When the eccentric wheel rotates to no longer contact the swing plate, the restoring force of the torsion spring causes the rotating rod and the striking plate to impact and beat the conveyor network, thereby breaking up the solidified sugar solution on the conveyor network and collecting it in the recycling bin below. This allows subsequent workers to pour it into a storage bin for reuse, avoiding waste of sugar solution resources. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall appearance structure of a freeze-dried strawberry spraying machine according to the present invention; Figure 2 This invention relates to a freeze-dried strawberry spraying machine. Figure 1 Another perspective structural diagram; Figure 3 This invention relates to a freeze-dried strawberry spraying machine. Figure 2 A partial enlarged view of the structure at point A in the middle; Figure 4 This invention relates to a freeze-dried strawberry spraying machine. Figure 2 A partial enlarged view of the structure at point B in the middle; Figure 5This is a schematic diagram of the nozzle installation position structure of a freeze-dried strawberry spraying machine according to the present invention; Figure 6 This is a schematic diagram of the external structure of a freeze-dried strawberry spraying machine for preventing condensation. Figure 7 This invention relates to a freeze-dried strawberry spraying machine. Figure 6 A partial enlarged view of the structure at point D; Figure 8 This is a schematic diagram of the internal structure of the storage box of a freeze-dried strawberry spraying machine according to the present invention; Figure 9 This is a schematic diagram of the external structure of a partial defoaming unit of a freeze-dried strawberry spraying machine according to the present invention.

[0028] In the diagram: 1. Mounting frame; 2. Spraying anti-condensation unit; 21. First electromagnet; 22. Moving block; 23. Return spring; 24. Electric push rod; 25. Slide carriage; 26. Bent rod; 27. Heating rod; 28. Support frame; 29. ​​Spray head; 210. Flexible belt; 211. Air box; 212. Pull plate; 213. Piezoelectric ceramic plate; 3. Defoaming unit; 31. Pull rope; 32. Straight column; 33. Telescopic spring; 34. Ring frame; 35. Storage box; 36. Turntable; 37. Conveying screw 38. Irregularly shaped wheel; 39. Vibrating paddle; 310. Moving plate; 311. Impact plate; 312. Guide rod; 313. Conductive slider; 4. Processing unit; 41. Fixing plate; 42. Long plate; 43. Buffer spring; 44. Second electromagnet; 45. Spike; 5. Recycling unit; 51. Vertical plate; 52. Eccentric wheel; 53. Rotating rod; 54. Swinging plate; 55. Knocking plate; 6. Transport unit; 61. First motor; 62. Second motor; 63. Conveyor roller; 64. Conveyor net. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example: Figures 1-9 As shown, the present invention provides a technical solution: like Figure 1As shown, a freeze-dried strawberry spraying machine includes a mounting frame 1, a spraying anti-condensation unit 2, a defoaming unit 3, a processing unit 4, a recycling unit 5, and a transport unit 6. The mounting frame 1 is placed on a horizontal ground. The spraying anti-condensation unit 2 is fixedly connected to the mounting frame 1. The spraying anti-condensation unit 2 is fixedly connected to the defoaming unit 3. The defoaming unit 3 is electrically connected to the processing unit 4. The defoaming unit 3 has the function of eliminating bubbles in the sugar solution. The processing unit 4 is fixedly connected to the mounting frame 1. The recycling unit 5 is fixedly connected to the mounting frame 1. The transport unit 6 is fixedly connected to the mounting frame 1. The recycling unit 5 is fixedly connected to the transport unit 6.

[0031] Mounting frame 1 is used to install and fix the spray anti-condensation unit 2, defoaming unit 3, treatment unit 4, recycling unit 5, and transport unit 6. Spray anti-condensation unit 2 is used to prevent the sugar solution from solidifying at nozzle 29. Defoaming unit 3 is used to eliminate air bubbles in the sugar solution. Treatment unit 4 is used to increase the adhesion of sugar solution to the surface of freeze-dried strawberries. Recycling unit 5 is used to recycle unused solidified sugar solution. Transport unit 6 is used to transport freeze-dried strawberries to a designated location for spraying sugar solution. Spray anti-condensation unit 2 treats nozzle 29 to prevent the sugar solution from solidifying at nozzle 29 and affecting the spraying effect. Defoaming unit 3 always maintains good fluidity of the sugar solution while eliminating air bubbles. Treatment unit 4 pre-treats the surface of the strawberries. Recycling unit 5 collects and reuses the unused sugar solution solidified on the transport net.

[0032] like Figure 6 As shown, the spraying anti-condensation unit 2 includes a first electromagnet 21, a moving block 22, a return spring 23, an electric push rod 24, a slide 25, and a bent rod 26. The moving block 22 is fixedly connected to the return spring 23, the moving block 22 is fixedly connected to the fixed end of the electric push rod 24, the telescopic end of the electric push rod 24 is fixedly connected to the slide 25, and the bent rod 26 is fixedly connected to the slide 25. The moving block 22 is made of magnet.

[0033] like Figure 5 , Figure 6 As shown, the spray anti-condensation unit 2 also includes a heating rod 27, a support frame 28, a nozzle 29, a flexible belt 210, an air box 211, a pull plate 212, and a piezoelectric ceramic plate 213. The first electromagnet 21 is fixedly installed on the support frame 28, and the return spring 23 is fixedly connected to the support frame 28. The heating rod 27 is fixedly connected to the bent rod 26. The support frame 28 is fixedly installed on the mounting frame 1. The nozzle 29 is fixedly installed on the support frame 28. One end of the flexible belt 210 is fixedly connected to the bent rod 26, and the other end is fixedly connected to the pull plate 212. The air box 211 is fixedly installed on the support frame 28. The inside of the air box 211 is a vacuum. The air box 211 is provided with a one-way air inlet and a one-way air outlet. The one-way air inlet of the air box 211 is connected to an external hot air tank. The pull plate 212 is slidably installed inside the air box 211. The piezoelectric ceramic plate 213 is fixedly installed on the support frame 28.

[0034] After the freeze-dried strawberries are transported to the support frame 28 and the sugar spraying process is completed, the controller stops the spraying of sugar from the nozzle 29. At the same time, the controller starts the electric push rod 24 to move the slide 25 forward. This causes the slide 25 to move the heating rod 27 on the curved rod 26 directly below the nozzle 29. During the process of the slide 25 striking the piezoelectric ceramic to generate a microcurrent, the controller receives the current signal and passes a current to the first electromagnet 21 with a polarity opposite to that of the moving block 22. This attracts the moving block 22 to stretch the return spring 23 and move it upward, causing the heating rod 27 to penetrate deeper into the nozzle 29. This prevents the sugar liquid adhering to the nozzle 29 from solidifying and affecting the uniformity of subsequent spraying. Meanwhile, the freeze-dried strawberries that have been sprayed with sugar continue to be transported to the right. When the electric push rod 24 drives the bent rod 26 to move forward, the flexible belt 210 drives the pull plate 212 to squeeze the hot air in the left chamber of the air box 211 out of the one-way air outlet, which accelerates the solidification of the sugar liquid on the freeze-dried strawberries, so that they can be quickly shaped and prevent the sugar liquid from flowing and affecting the appearance. When the controller controls the electric push rod 24 to retract and reset, a reverse current is first passed to the first electromagnet 21 so that the first electromagnet 21 presents the same polarity as the moving block 22, pushing the moving block 22 to squeeze the reset spring 23 to move downward, so that the heating rod 27 is separated from the nozzle 29. During the retraction of the electric push rod 24, the pull plate 212 resets and moves to the right under the action of the spring, and hot air is re-extracted from the hot air tank 211 for backup.

[0035] like Figure 7 , Figure 8 As shown, the defoaming unit 3 includes a pull rope 31, a straight column 32, a telescopic spring 33, a ring frame 34, a storage box 35, and a turntable 36. One end of the pull rope 31 is fixedly connected to the slide 25, and the other end is fixedly connected to the straight column 32. The straight column 32 is fixedly installed on the turntable 36. One end of the telescopic spring 33 is fixedly connected to the straight column 32, and the other end is fixedly connected to the ring frame 34. The straight column 32 and the ring frame 34 are slidably connected. The ring frame 34 is fixedly installed on the storage box 35 through a connecting rod. The storage box 35 is conductively connected to the nozzle 29. The pull plate 212 is connected to the air box 211 through a spring. The storage box 35 is fixedly installed on the support frame 28.

[0036] like Figures 7-9As shown, the defoaming unit 3 also includes a conveying screw 37, a shaped wheel 38, a vibrating paddle 39, a moving plate 310, an impact plate 311, a guide rod 312, and a conductive slider 313. The turntable 36 is fixedly connected to the conveying screw 37, and the conveying screw 37 is rotatably connected to the storage box 35. The shaped wheel 38 is fixedly installed on the conveying screw 37, the vibrating paddle 39 is fixedly installed on the inner wall of the storage box 35, the moving plate 310 is connected to the storage box 35 by a spring, the moving plate 310 is vertically fixedly connected to the impact plate 311, the guide rod 312 is fixedly installed on the outer surface of the storage box 35, the end of the conveying screw 37 away from the turntable 36 is provided with an external thread, the conductive slider 313 is threadedly connected to the conveying screw 37, the conductive slider 313 is slidably connected to the guide rod 312, and a heater is provided on the blades of the conveying screw 37.

[0037] As the carriage 25 moves to the left, the pull rope 31 pulls the straight column 32 along the ring frame 34 while simultaneously compressing the telescopic spring 33. During the sliding of the straight column 32, the turntable 36 and the conveying screw 37 rotate, thus agitating the sugar solution in the storage bin 35, keeping the sugar solution in a flowing state to prevent solidification that could clog the nozzle 29 or cause uneven spraying. As the conveying screw 37 rotates, it drives the shaped wheel 38 to rotate. When the shaped wheel 38 rotates to contact the moving plate 310, it lifts the moving plate 310 and squeezes... When the irregular wheel 38 is not in contact with the moving plate 310, the spring pushes the moving plate 310 under the action of its own restoring force, causing the impact plate 311 to move downward and impact the vibration plate 39. After being periodically impacted, the vibration plate 39 generates micro-vibration, thereby tearing and eliminating air bubbles in the sugar solution. This prevents air bubbles from affecting the uneven distribution of sugar solution when the spray nozzle 29 is sprayed, which would result in uneven sugar coating of freeze-dried strawberries, affecting their appearance and taste. During the rotation of the screw, the conductive slider 313 moves back and forth on the guide rod 312.

[0038] like Figure 4 As shown, the processing unit 4 includes a fixed plate 41, a long plate 42, a buffer spring 43, a second electromagnet 44, and a needle 45. The fixed plate 41 is fixedly mounted on the mounting frame 1, and the long plate 42 is slidably connected to the fixed plate 41. One end of the buffer spring 43 is fixedly connected to the second electromagnet 44, and the other end is fixedly connected to the long plate 42. The second electromagnet 44 is fixedly mounted on the mounting frame 1, and the conductive slider 313 is electrically connected to the second electromagnet 44. The needle 45 is fixedly mounted on the long plate 42, and the long plate 42 is made of magnet.

[0039] As the conductive slider 313 moves outward along the guide rod 312, the number of turns of the drive coil increases, and the resistance increases, thereby reducing the current supplied to the second electromagnet 44. At this time, the long plate 42 moves downward under the action of the self-restoring force of the buffer spring 43, causing the needle 45 to pierce some small holes on the surface of the freeze-dried strawberry during transportation, thereby increasing the adhesion of the sugar liquid and preventing the sugar liquid from flowing down the surface of the strawberry during the spraying process, which would reduce the utilization rate of the sugar liquid.

[0040] like Figure 3 As shown, the recycling unit 5 includes a vertical plate 51, an eccentric wheel 52, a rotating rod 53, a swing plate 54, and a knocking plate 55. The vertical plate 51 is fixedly installed on the mounting frame 1. The eccentric wheel 52 is connected to the transport unit 6 through a connecting rod. One end of the rotating rod 53 is connected to the vertical plate 51 through a torsion spring, and the other end is connected to the mounting frame 1 through a torsion spring. The swing plate 54 is fixedly installed on the rotating rod 53, and the knocking plate 55 is fixedly installed on the rotating rod 53.

[0041] like Figure 2 , Figure 3 As shown, the transport unit 6 includes a first motor 61, a second motor 62, a conveying roller 63, and a conveying net 64. The first motor 61 is fixedly mounted on the mounting frame 1, the second motor 62 is fixedly mounted on the mounting frame 1, the conveying roller 63 is fixedly connected to the output end of the first motor 61, the conveying roller 63 is rotatably connected to the mounting frame 1, the conveying roller 63 is fixedly connected to the output end of the second motor 62, the outer surface of the conveying roller 63 is covered with a conveying net 64, and the conveying roller 63 connected to the first motor 61 is fixedly connected to the eccentric wheel 52.

[0042] The controller starts the first motor 61 and the second motor 62, which in turn drives the conveyor roller 63 to rotate. In conjunction with the external negative pressure mechanism, the freeze-dried strawberries on the conveyor net 64 are transported by negative pressure adsorption. During the rotation of the conveyor roller 63, the eccentric wheel 52 is driven to rotate. When the eccentric wheel 52 rotates to contact the swing plate 54, it squeezes the swing plate 54 and drives the rotating rod 53 to rotate, while compressing the torsion spring. When the eccentric wheel 52 rotates to no longer contact the swing plate 54, the torsion spring's own restoring force drives the rotating rod 53 and the striking plate 55 to impact and beat the conveyor net 64, thereby breaking up the solidified sugar liquid on the conveyor net 64 and collecting it into the recycling box below. This allows the workers to pour it into the storage box 35 for secondary use, avoiding the waste of sugar liquid resources.

[0043] like Figure 7 , Figure 9 As shown, a drive coil is provided on the guide rod 312, and the end near the turntable 36 is the current input terminal.

[0044] In order to make the conductive slider 313 reciprocate on the guide rod 312, the polarity of the second electromagnet 44 is changed, thereby controlling the rise and fall of the long plate 42 to drive the needle 45 to form holes on the surface of the freeze-dried strawberry, and improving the adhesion of the sugar liquid when spraying sugar.

[0045] like Figure 1 As shown, a controller is installed on mounting bracket 1.

[0046] To facilitate automated control of the device, save manpower, and improve work efficiency through timely response of the device itself.

[0047] Working principle of the invention: The controller starts the first motor 61 and the second motor 62, which in turn drives the conveyor roller 63 to rotate. In conjunction with the external negative pressure mechanism, the freeze-dried strawberries on the conveyor net 64 are transported by negative pressure adsorption. During the rotation of the conveyor roller 63, the eccentric wheel 52 is driven to rotate. When the eccentric wheel 52 rotates to contact the swing plate 54, it squeezes the swing plate 54 and drives the rotating rod 53 to rotate, while compressing the torsion spring. When the eccentric wheel 52 rotates to no longer contact the swing plate 54, the torsion spring's own restoring force drives the rotating rod 53 and the striking plate 55 to impact and beat the conveyor net 64, thereby breaking up the solidified sugar liquid on the conveyor net 64 and collecting it into the recycling box below. This allows the workers to pour it into the storage box 35 for secondary use, avoiding the waste of sugar liquid resources.

[0048] After the freeze-dried strawberries are transported to the support frame 28 and the sugar spraying process is completed, the controller stops the spraying of sugar from the nozzle 29. At the same time, the controller starts the electric push rod 24 to move the slide 25 forward. This causes the slide 25 to move the heating rod 27 on the curved rod 26 directly below the nozzle 29. During the process of the slide 25 striking the piezoelectric ceramic to generate a microcurrent, the controller receives the current signal and passes a current to the first electromagnet 21 with a polarity opposite to that of the moving block 22. This attracts the moving block 22 to stretch the return spring 23 and move it upward, causing the heating rod 27 to penetrate deeper into the nozzle 29. This prevents the sugar liquid adhering to the nozzle 29 from solidifying and affecting the uniformity of subsequent spraying. Meanwhile, the freeze-dried strawberries that have been sprayed with sugar continue to be transported to the right. When the electric push rod 24 drives the bent rod 26 to move forward, the flexible belt 210 drives the pull plate 212 to squeeze the hot air in the left chamber of the air box 211 out of the one-way air outlet, which accelerates the solidification of the sugar liquid on the freeze-dried strawberries, so that they can be quickly shaped and prevent the sugar liquid from flowing and affecting the appearance. When the controller controls the electric push rod 24 to retract and reset, a reverse current is first passed to the first electromagnet 21 so that the first electromagnet 21 presents the same polarity as the moving block 22, pushing the moving block 22 to squeeze the reset spring 23 to move downward, so that the heating rod 27 is separated from the nozzle 29. During the retraction of the electric push rod 24, the pull plate 212 resets and moves to the right under the action of the spring, and hot air is re-extracted from the hot air tank 211 for backup.

[0049] As the carriage 25 moves to the left, the pull rope 31 pulls the straight column 32 along the ring frame 34 while simultaneously compressing the telescopic spring 33. During the sliding of the straight column 32, the turntable 36 and the conveying screw 37 rotate, thus agitating the sugar solution in the storage bin 35, keeping the sugar solution in a flowing state to prevent solidification that could clog the nozzle 29 or cause uneven spraying. As the conveying screw 37 rotates, it drives the shaped wheel 38 to rotate. When the shaped wheel 38 rotates to contact the moving plate 310, it lifts the moving plate 310 and squeezes... When the irregular wheel 38 is not in contact with the moving plate 310, the spring pushes the moving plate 310 under the action of its own restoring force, causing the impact plate 311 to move downward and impact the vibration plate 39. After being periodically impacted, the vibration plate 39 generates micro-vibration, thereby tearing and eliminating air bubbles in the sugar solution. This prevents air bubbles from affecting the uneven distribution of sugar solution when the spray nozzle 29 is sprayed, which would result in uneven sugar coating of freeze-dried strawberries, affecting their appearance and taste. During the rotation of the screw, the conductive slider 313 moves back and forth on the guide rod 312.

[0050] As the conductive slider 313 moves outward along the guide rod 312, the number of turns of the drive coil increases, and the resistance increases, thereby reducing the current supplied to the second electromagnet 44. At this time, the long plate 42 moves downward under the action of the self-restoring force of the buffer spring 43, causing the needle 45 to pierce some small holes on the surface of the freeze-dried strawberry during transportation, thereby increasing the adhesion of the sugar liquid and preventing the sugar liquid from flowing down the surface of the strawberry during the spraying process, which would reduce the utilization rate of the sugar liquid.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A freeze-dried strawberry spraying machine, characterized in that: The freeze-dried strawberry spraying machine includes a mounting frame (1), a spraying anti-condensation unit (2), a defoaming unit (3), a processing unit (4), a recycling unit (5), and a transport unit (6). The mounting frame (1) is placed on a horizontal ground. The spraying anti-condensation unit (2) is fixedly connected to the mounting frame (1). The spraying anti-condensation unit (2) is fixedly connected to the defoaming unit (3). The defoaming unit (3) is electrically connected to the processing unit (4). The defoaming unit (3) has the function of eliminating sugar bubbles. The processing unit (4) is fixedly connected to the mounting frame (1). The recycling unit (5) is fixedly connected to the mounting frame (1). The transport unit (6) is fixedly connected to the mounting frame (1). The recycling unit (5) is fixedly connected to the transport unit (6).

2. The freeze-dried strawberry spraying machine according to claim 1, characterized in that: The spraying anti-condensation unit (2) includes a first electromagnet (21), a moving block (22), a return spring (23), an electric push rod (24), a slide (25), and a bent rod (26). The moving block (22) is fixedly connected to the return spring (23), the moving block (22) is fixedly connected to the fixed end of the electric push rod (24), the telescopic end of the electric push rod (24) is fixedly connected to the slide (25), and the bent rod (26) is fixedly connected to the slide (25). The moving block (22) is made of magnet.

3. The freeze-dried strawberry spraying machine according to claim 2, characterized in that: The spray anti-condensation unit (2) further includes a heating rod (27), a support frame (28), a nozzle (29), a flexible belt (210), an air box (211), a pull plate (212), and a piezoelectric ceramic plate (213). The first electromagnet (21) is fixedly installed on the support frame (28), the return spring (23) is fixedly connected to the support frame (28), the heating rod (27) is fixedly connected to the bent rod (26), the support frame (28) is fixedly installed on the mounting frame (1), the nozzle (29) is fixedly installed on the support frame (28), and the flexible belt (210) 210) One end is fixedly connected to the bent rod (26), and the other end is fixedly connected to the pull plate (212). The air box (211) is fixedly installed on the support frame (28). The air box (211) is a vacuum inside. The air box (211) is provided with a one-way air inlet and a one-way air outlet. The one-way air inlet of the air box (211) is connected to an external hot air tank. The pull plate (212) is slidably installed inside the air box (211). The pull plate (212) is connected to the air box (211) by a spring. The piezoelectric ceramic plate (213) is fixedly installed on the support frame (28).

4. The freeze-dried strawberry spraying machine according to claim 3, characterized in that: The defoaming unit (3) includes a pull rope (31), a straight column (32), a telescopic spring (33), a ring frame (34), a storage box (35), and a turntable (36). One end of the pull rope (31) is fixedly connected to the slide (25), and the other end is fixedly connected to the straight column (32). The straight column (32) is fixedly installed on the turntable (36). One end of the telescopic spring (33) is fixedly connected to the straight column (32), and the other end is fixedly connected to the ring frame (34). The straight column (32) and the ring frame (34) are slidably connected. The ring frame (34) is fixedly installed on the storage box (35) through a connecting rod. The storage box (35) is conductively connected to the nozzle (29). The storage box (35) is fixedly installed on the support frame (28).

5. A freeze-dried strawberry spraying machine according to claim 4, characterized in that: The defoaming unit (3) further includes a conveying screw (37), a shaped wheel (38), a vibrating paddle (39), a moving plate (310), an impact plate (311), a guide rod (312), and a conductive slider (313). The turntable (36) is fixedly connected to the conveying screw (37), and the conveying screw (37) is rotatably connected to the storage box (35). The shaped wheel (38) is fixedly installed on the conveying screw (37), and the vibrating paddle (39) is fixedly installed on the inner wall of the storage box (35). The moving plate (310) is connected to the storage box (35) by a spring. The moving plate (310) is vertically fixed to the impact plate (311). The guide rod (312) is fixedly installed on the outer surface of the storage box (35). The end of the conveying screw (37) away from the turntable (36) is provided with an external thread. The conductive slider (313) is threadedly connected to the conveying screw (37). The conductive slider (313) is slidably connected to the guide rod (312). A heater is provided on the blade of the conveying screw (37).

6. The freeze-dried strawberry spraying machine according to claim 5, characterized in that: The processing unit (4) includes a fixed plate (41), a long plate (42), a buffer spring (43), a second electromagnet (44), and a needle (45). The fixed plate (41) is fixedly mounted on the mounting frame (1), and the long plate (42) is slidably connected to the fixed plate (41). One end of the buffer spring (43) is fixedly connected to the second electromagnet (44), and the other end is fixedly connected to the long plate (42). The second electromagnet (44) is fixedly mounted on the mounting frame (1). The conductive slider (313) is electrically connected to the second electromagnet (44). The needle (45) is fixedly mounted on the long plate (42), and the long plate (42) is made of magnet.

7. The freeze-dried strawberry spraying machine according to claim 1, characterized in that: The recycling unit (5) includes a vertical plate (51), an eccentric wheel (52), a rotating rod (53), a swing plate (54), and a knocking plate (55). The vertical plate (51) is fixedly installed on the mounting frame (1). The eccentric wheel (52) is connected to the transport unit (6) through a connecting rod. One end of the rotating rod (53) is connected to the vertical plate (51) through a torsion spring, and the other end is connected to the mounting frame (1) through a torsion spring. The swing plate (54) is fixedly installed on the rotating rod (53), and the knocking plate (55) is fixedly installed on the rotating rod (53).

8. A freeze-dried strawberry spraying machine according to claim 7, characterized in that: The transport unit (6) includes a first motor (61), a second motor (62), a conveying roller (63), and a conveying net (64). The first motor (61) is fixedly mounted on the mounting frame (1), and the second motor (62) is fixedly mounted on the mounting frame (1). The conveying roller (63) is fixedly connected to the output end of the first motor (61). The conveying roller (63) is rotatably connected to the mounting frame (1). The conveying roller (63) is fixedly connected to the output end of the second motor (62). The outer surface of the conveying roller (63) is covered with a conveying net (64). The conveying roller (63) connected to the first motor (61) is fixedly connected to an eccentric wheel (52).

9. A freeze-dried strawberry spraying machine according to claim 5, characterized in that: A drive coil is provided on the guide rod (312), and the end near the turntable (36) is the current input terminal.

10. A freeze-dried strawberry spraying machine according to claim 1, characterized in that: The mounting bracket (1) is equipped with a controller.

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